[jqueryin]

This is potentially useful for the US market as chip/pin is very new to us and only recently rolled out via major banks this year (I literally just got my new Visa card with a chip). I can see how Europe is far ahead of the curve.

My initial questions/concerns are as follows:

Will this be usable in ATMs? I can't visibly tell if it's too wide to fit.

Is there any planned security functionality to lock the card via your paired mobile device? I'd like to be able to supply a password to unlock for a short period of time for usage.

[brsch]

Based on Coin's FAQ:

1. Yes, it should be usable with ATMs without issue.

2. You cannot lock your coin with a password, but it will deactivate after it loses contact with a phone after a user-specified amount of time. In theory, I'd assume you can disable Bluetooth on your iPhone and it will effectively "lock" your Coin until it can pair with your device again.

[dannygarcia]

Would be nice if there was a way to physically unlock it. I can imagine my phone dying – preventing me from making any kind of purchase.